Portable audio speaker



FIG. 1 is a perspective view of a portable audio speaker system showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side elevational view of one side thereof;

FIG. 6 is a side elevational view of the opposite side thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a rear elevational view thereof.

The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment that form no part of the claimed design. 

CLAIM The ornamental design for portable audio speaker, as shown and described. 